Inking mechanism for printing-presses



, R. s. TYLER. INKINGMECH ANISM FOR PRINTING PRESSES.

- APPLICATION FILED APR. 23,1919- 1 3 52, 1 5 9 "Patented Sept. 7, 1920 r v F/ A of 77 RALPH s. TYLER, F CLEVELAND nnien'rs vim-lien, OHIO, ASSIGNOR TO THE CHAN- DLEZR. AND PRICE cor/mentor CLEVELAND, arm, A. cotaronA'rron or OHIO.

'I NKI G MECHANISM Forv rnmrmsfrnnssnsi To all whom it may; concern:

Be. it known'that L'RALPH'S. TYLER, a citizen. of the United States, and a resident of Cleveland Heights Village, county of Cuyahoga, and State of'Ohio, have invented a new and useful. Improvement in Inking Mechanism Tfor Printing-Presses, of. which thefollowing is aspecification, the principle of the invention being herein explained and.

the best mode in which I have contemplated applying that principle, so as to, distinguish it from other inventions. r The present improvement relating, as indicated, to inking mechanism for printing presses, have more particular regard to van automatic ink fountain for platen presses, a fountain of this type being illustrated, for example, in U. S. LettersPatent Re. No. 141,165, granted A. B. Carty underdate of July 18, 1916, One of the objects of the" present invention is to provide means for rendering such an automatic ink fountain inoperative whenever the throw-01f lever is swung to prevent contact .between platen and form. Another object is to provide means whereby the amount of ink distributed onto the inking plate or disk, and thence by means of the form rollers onto the form, may be adjusted or controlled. i a To the accomplishment of, the foregoing and related ends, the invention, then, consists of the means hereinafter fully described and particularly pointed out in the claims, the annexed drawing and the following'description setting forth in detail certain mechanism embodying the invention, such disclosed means constituting, however, but" one of various mechanical forms in which, the principle of the invention maybe used.

In said annexed drawing c Figure l is a side elevation of a platen press equipped with an automatic ink fountain of the kind previously referred to, said fountain being adapted to be thrown out of (operation whenever the throw-01f lever of thepressis swung rearwardly and being formedadjustable tovary the rate at which the ink is fed in accordancewith the present invention; Fig. 2 is a side elevation on an enlarged scale of a detail of such fountain; and Fig. 3 is a ,crosssection of such detail, the plane of the section being indicated by the line 3-3, Fig.1.

Thepress is of familiar construction, comprising a platen 1 suitably supported on a v Specification of Letters Patent.

Gordon,

frame 2 and an oscillatory form-carrying bed 3 that 1s swung toward and away from FFQE- v V -Patented Sept. 7, 1920. 1 7 Application filed April 23, 1919, SeriaINo. 292,137. i

said platen throughthe medium ofcranks l and. connecting rods or. side arms 5'. By means of a rock shaft (Sand connections (not shown) the position of the bed may be shift: ed, so that, without interrupting its oscillat1on, or in otherwords stopping. the press,

the form 8does not contact'with platen T his is a-familiar feature,ofconstruction in presses-ofthe, classin hand, it being fre quently necessary to ,thus throw off the press, if the sheet on the platen slipsor is not properly adjusted in position. F or the purpose of operating said rock shaft 6 a lever 9- pivotally attached to the side ofthe frame 2 is provided, said lever being con- 1 nected by means of a link 10 with a lever 11' ons'aid shaft "6. y Y

The automatic. ink fountain shown in the drawing, as previously indicated, is of the typedisclosed in Reissue Letters Patent No. 14,165,- and comprises aframefll5 suitably attached to the bed at therear of. the disk 16, and overhanging the latter, so as to leave ample clearance for the form rollers 17 which are moved over said disk and-the form 8 by the oscillation of the roller'frame 18, as need notbe further explained." I

The fountain proper comprises asuitable receptacle 20, in which a roller (not shown) is suitably supported on the shaft 21". From this roller-the ink is carried onto; an intermediate roller 22.that is adapted to contact with the form rollers 17 as the latter pass across the .disk. For the purpose of imparting rotative movement to the roller on shaft 21 an arm :23 is oscillatorily mounted about the sameaxis as said shaft, 7

said arm carrying a pawl or dog 24 that is adapted to cooperate with a ratchet 25, keyed or. otherwise fixedly. attached to the shaft, ('see 3). The outer or free end j 'ment through a predetermined are for every oscillation of the form rollerframe.

The effect of the rotation of the shaft 21 and roller carried thereby will obviously be to feed the same predetermined quantity of ink, irrespective of requirements which may vary with the nature of the job and the character of the ink used. I accordingly provide means for limiting the operative effect of the dog 24 as follows, viz: On the" shaft 21 adjacent the ratchet wheel 25 I mount a disk 30, the diameter of which, for a portion of its circumference, is equal to or greater than the maximum diameter of said ratchet wheel so as to shroud the teeth thereon. Accordingly by rotating the disk so as to 'bringthis portion of its periphery into. the path of the dog 24, the effect of the latter to rotate said wheel will be correspondingly limited Said disk 30 may be thus positioned manually as desired, and

the disk is then retained in adjusted positlOIl' by meansof a'spring 31, the free end of which is recurved to en a e with an selected one of'a series of notches 32 cut in another portion of the disks periphery.

Adjacent the other face of ratchet Wheel 25 (the outerface 'as shown) is a second .disk 33 of somewhat similar character, in

that its diameter, for a portion of its circumference, is equal to or greater than the shaft 6, so that whenever the latteris operated" through the. medium, of throw-off lever 9 said disk will be moved into the position indicated in dotted outline in Fig. 1, wherebythe teeth on ratchet wheel 25 are shrouded throughout the complete range of movement of the dog. The continued movement of the latter is accordingly rendered ineffective to feed more ink, and operation of the fountain ceases until the press is restored to normal operating condition by reverse movement of said lever 9.

The mode of operation of my improved inking mechanism has, it is believed, been sufficiently set forth in connection with the 1 foregoing description of the construction and operation of its. several component parts. It will be seen that, by means of the spring 31, ,the automatic fountain can be set to feed the ink at any desired rate when the press is normally operating, while, through the medium of connecting rod 34,

whenever the throw-off lever 9 is operated to prevent theform from contacting with a sheet on the platen, thefeeding of ink will be simultaneously entirely stopped. In this way the accumulation of an abnormal quantity of ink on the form rollers and. disk, and consequent smearing of the form and Work, is entirely avoided. I I Y Other modes of applying the principle of my invention may be employed instead of the one explained, change being made .as regards the mechanism herein disclosed, provided the means stated by any of the following claims or' the equivalent of such stated means be employed.

I therefore particularly point out and dis-, tinctly claim as my invention w 1. In a platen printing press provided with a throwofl' adapted to shift the bed of said press without interrupting opera-- 7 tion of the platen, the combination withan ink fountain mounted above the I inking disk of said press, said: fountain including an ink-feeding roller, a ratchet wheel con nected therewith, an oscillatory arm, and a pawl on said arm adapted to. progres sively'rotate said wheel; of connections between said arm and the roller. frame of said press adapted to operate the former in unison with the latterja disk adapted to, shroud said wheel and thereby limit the operative effect ofsaid pawl; and means;

adapted to position-said disk.

2. In a platen printing press provided with a throw-off adapted to .shift the'bed of said press without interrupting opera tion of the platen, the combination withjan ink fountain mounted above the inking disk of said press, said fountain including an lnk-feeding roller, a'ratchet wheel connected therewith, an oscillatory arm, and; r

a pawl on said arm adapted to progressively rotate said wheel: of connections between said arm and the roller frame of said press adapted to operate theformerin.

shroud said wheeland thereby limit the operative effect of]. said pawl; and manu-r ally operable means adapted vto retain said disk in desired position. y V

3, In a platen printing press provided with a throw-oft adapted, to shift the bed of said press without interruptingopera-s tion of the platen, the combination with an.

ink fountain mounted above the inking disk of said press, saidfountain including an ink-feeding roller, a ratchet wheel con-v nected therewitlnjan oscillatory arm, and a pawl on said arm adapted to progressively rotate said-wheel; of connections'be; tween said arm and the roller frame of said press adapted to operate the former in unison with the latter; a disk adapted to shroud said wheeland thereby limit the operative effect of said pawl; and; a resilient member adapted to engage said diskr and retain same in desiredposition, a is 4:. In aplaten printing ,pressprovided with a throw-ofi' adapted- V to shift the bed of said press without interrupting opera tion of the platen, thecombination with an ink fountain mounted above the inking disk of said press,,sai d fountain including an ink-feeding roller, a ratchet wheel connected therewith, an oscillatory arm, and a pawl on said arm adapted to progressively rotate said wheel; of connections between said arm and the roller frame of said press adapted to operate the former in unison with the latter; a disk adapted to shroud said wheel and thereby limit the operative effect of said pawl; and means connected with said throw-01f adapted to position said disk. 7

5;. in a platen printing pressprovided with a throw-off, the rombination with an ink fountain mounted above the inking disk of said press, said fountain including an ink-feeding roller, a ratchet wheel connccted therewith an oscillatory arm, and a pawl on said arm adapted to progressively rotate said wheel; of connections between said arm and the roller frame of said press adapted to operate the former in unison with the latter; a disk adapted to shroud said wheel and thereby limit the operative elfect of said pawl; manually operable means adapted to retain said disk in desired position; a second disk adapted to shroud said wheel and similarly limit-the of said press, said fountain including an ink-feeding roller, a ratchet wheel connectedtherewith, an oscillatory arm, and a pawl on said arm adapted to progressively rotate said wheel; of connections between said arm and the roller frame of said press adapted to operate the former, in unison with the latter; a disk adapted to shroud said wheel and thereby limit the operative effect of said pawl; a resilient member adapted to engage said disk and adapted to retain same in desired position; a, second disk adapted to shroudsaid wheel and similarly limit the operative effect of saidpawl; and means connected with said throw-off adapted to position said second disk.

RALPH S. TYLER;

Signed by me, this 2lst day of April, 

